Preliminary Study of The Nutritional Content and Phytochemical Constituent of An Under-Utilised Bitter Melon Plant

Abstract

Bitter melon (momordica charantia) plant is used for some medicinal purposes in traditional medicine but the food value was investigated. The nutritional compositions and phytochemical constituents of the powdered leaf and fruit were investigated using standard analytical methods. The proximate compositions showed the percentage of moisture content (11.38 ±0.29 and 10.74 ± 0.02), ash (14.39 ±0.02 and 7.40 ± 0.1), crude fat (2.65 ±0.10 and 6.11 ± 0.05), crude fibre (16.11 ±0.04 and 13.61 ± 0.04), crude protein (21.19 ±0.52 and 27.92 ± 0.06), and carbohydrate (33.94 ±0.25 and 34.22 ± 0.11) of samples on a dry weight basis for the leaf and the fruit respectively. Also, the mineral analysis showed the concentration in mg/100g of Ca (239.65 ±0.30 and 70.60 ±0.23), Na (40.40 ±0.04 and 23.47 ±0.02), K (67.22 ±0.02 and 319.25 ±0.03), Fe (4.98 ±0.02 and 5.64 ±0.04), Zn (24.5 ±0.40 and 17.40 ±0.56) and Cu (4.96 ±0.20 and 2.57 ±0.06) of samples on a dry weight basis for the leaf and fruit respectively. Powdered samples of the leaves were extracted with water and ethanol respectively to isolate the required phytochemicals. Phytochemicals like phytate, alkaloids, tannins, saponins, and oxalate were found present in appreciable level except for the glycoside which is present in trace amount in the water extract. The study indicates the presence of nutritional components that are beneficial in addition to the purported numerous medicinal values of the plant.

Keywords: Momordica, bitter melon, proximate composition, minerals, phytochemicals.

DOI: 10.7176/JNSR12-2-03

Publication date: January 31^st 2021